公开(公告)号：US20070295554A1

公开(公告)日：2007-12-27

申请号：US11629840

申请日：2005-06-14

申请人： Matthias Flucht ,  Christoph Heiland ,  Uwe Gross ,  Peter Altenhofen

发明人： Matthias Flucht ,  Christoph Heiland ,  Uwe Gross ,  Peter Altenhofen

IPC分类号： F01N7/00

CPC分类号： F02M35/1216 ,  F02M35/1261 ,  F02M35/1266

摘要： A device for muffling the sound produced by a fluid in a duct, especially the sound produced in an intake pipe of a combustion engine, comprises a wall, whose inside defines a flow passage for the fluid. The device is at least partly tubular, i.e. it has two openings. At the outside of the wall (3) is arranged a plurality of chambers (4), each of which is connected to the flow passage via an aperture (7). The chambers (4) are bounded by the outside of the wall (3) as well as by bars (5, 6, 8) formed at the outside of the wall (3). The chambers (4) function in use as Helmholtz resonators. In addition, a device for the conduction of a fluid with the sound proofing device (1) described is presented.

摘要翻译： 用于消除由管道中的流体产生的声音的装置，特别是在内燃机的进气管中产生的声音的装置包括壁，其内部限定用于流体的流动通道。 该装置至少部分地是管状的，即它具有两个开口。 在壁（3）的外侧布置有多个室（4），每个室（4）经由孔（7）连接到流动通道。 室（4）由壁（3）的外侧以及形成在壁（3）外侧的杆（5,6,8）限定。 室（4）用作亥姆霍兹共振器。 另外，提出了用上述隔音装置（1）传导流体的装置。